Churn-dasher



(No Model.)

0.. BERST. CHURN DASHER.

No. 565,130. Patehted Aug. 4, 1896*;

C 021 rad Bars t.

UNITED STATES PATENT rrrcno CONRAD BERST, OF KANSAS CITY, MISSOURI.

CHURN-DASHER,

SPECIFICATION forming part of Letters Patent No. 565,130, dated August4, 1896.

Application filed May 22,1896. Serial No. 592 608. (No model.)

T0 all whom it may concern:

Be it known that I, CONRAD BERST, a citizen of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented a new and useful Churn-Dasher, of which the following is aspecification.

This invention relates to that class of dashers which in operation havea reciprocating movement imparted thereto; and the object of: theimprovement is to provide a dasher which will offer a minimum amount ofresistance to the substance being whipped or churned when returning to anormal orstarting position, thereby lessening the efiort required in thechurning process and facilitating the return of the dasher to an initialposition after it has advanced to the required point in its forwardmovement.

With these and other objects in view the invention consists, primarily,of movable beaters, which are adapted to move in a curved path and toassume a position immediately below and in vertical alinement withcorresponding fixed beaters when the dasher is retnrning to a normalposition or is in a quiescent state and not immersed in the cream,hatter, or other substance to be whipped or churned, and which movahlebeaters will occupy a position in the plane of and side by side the saidfixed beaters when the dasher is (lepressed or advancing on its forwardstroke.

The improvement also consists of the novel features which hereinafterwill he more particularly set forth and clai1ned, and which areillustrated in the accompanying drawin gs, in which Figure 1 is aperspective view of a dasher constructed in accordance with thisinvention, showing the movable beaters at their lower position. Fi g. 2is a Sid e elevation thereof, showing the movable beaters at theirhighest position and in the plano of the fixed heaters. Fig. 3 is atransverse section of the dasher, showing the movable beater at itslowest position.

Referring by numerals to the drawings, in which similar charactersdenote correspond ing parts in all the figures, 1 indicates a stafi, 2 across-bar having oppositely-curved slots 3 near its ends and supportingthe fixed beaters l and the movable beaters 5, and 6 the of the fixedbeaters 4 and immediately below the contiguous fixed beaters, as shownmost clearly in Fig. 2. The movable beaters 5 are mounted in the curvedslots 3 and have circular enlargements 7 to come upon opposite sides ofthe cross-bar 2, so as to maintain the said movable beaters in workingrelation.

Vhcn the dasher is at rest and not im mersed in the cream, batter, orother substance to be churned, the movable beaters will occupy avertical position immediaiely below the adjacent fixed beaters, and whenthe dasher is in working position and is moved forward the said movablebeaters will occupy a position in the plano of the fixed beaters, asshown most clearly in Fig. 2. The movable beaters being of wood, arebuoyant and on the initial movement of the forward stroke of the dasherthe said movahle heaters will start upwardly in the curved slots 3 byreason of their buoyancy in the cream, batter, &c., being agitated, andthis upward movement will be accelerated by the forward or downwardmovement of the dasher, as will be readily understood. When the dasherreturns to a normal position the movable beaters Will descend to thelowest position of the curved slots 3 under the action of gravity, andthe resistance of the substance exerted upon the said movable beaters,thereby lessening the effort required to elevate or return the dasher toits initial position.

The purpose of the breaker-bar 6 is to cause a lateral circulation ofthe cream on the for ward or down strolte of the dasher, and the lateralmovement of the greater hulk of the cream will cause a correspondingmovement of the fine jets passing hetween,the several beaters and willresult in the cream being thrown violently again st the sides of thevessel containing the same, thereby breaking up the hutter globnles andsecuring a thorongh ICO agitation, which results in the churning orwhipping in a eomparative1y short interval of time and in a thorough andeffective ]l&llll.

In order to faci1itate the p1acing of the movable heaters within theeurved slots, the cross-bar is separated horizontaily and the parts areseeured together by screws 8 or other fastenings, by means of which thede sired result is attained.

What is olaimed is 1. A dasher comprising a support formed with ourvedslots, a series of beaters attached to the said support and inoapable ofindependent movement, and movable beaters placed in the said curvedslots and adapted to move automaticallytherein in the operation of thedevice and to occupy a position in the plane of the fixed beaters whenthe dasher is moved forward, and to occupy a position i1nn1ediate1ybelow and in verticai a1inement with the adjacent fixed beaters so as tooffer no resistance to the return stroke of the dasher, substantiaily asspecified.

2. The dasher constructed substantialiy as herein specified, the same.comprising a staff, a cross-bar having oppositeiy-disposed curved slotsnear its ends of quadrantal shape, fixed beaters supported between theirends at intervais in the length of the cross-bar, movab1e beatersarranged in the said curved slots, and having annu1ar enlargements toengage With the opposite sides of the cross-bar, said movab1e beatersoccupying a position in the p1ane of the fixed beaters when the dasheris moving forward, and in vertical a1inen1ent With and mmediateiy belowthe adjaoent fixed beaters when the dasher is returning, and abreaker-bar arranged intermediate of the fixed beaters and at rightang1es to the said cross-bar, substantic 11y as set forth for thepurpose described.

In testimony that l claim the foregoing as my own I have hereto aflixedmy-signature in the presence of two witnesses.

CONRAD BERST. Witnesses:

H. S. COLEMAN, JOHN L. HIGGINS.

